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Finding the Fourth Proportional to 18,668.34, 27,865.96 and 16,454.00

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Solution

The fourth proportional to 18,668.34, 27,865.96 and 16,454.00 is: 24,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.34 : 27,865.96 = 16,454.00 : x
  2. Step 2: Convert to fraction form
    18,668.34/27,865.96 = 16,454.00/x
  3. Step 3: Cross multiply
    18,668.34x = 27,865.96 × 16,454.00
  4. Step 4: Simplify right side
    18,668.34x = 458,506,534.37
  5. Step 5: Solve for x
    x = 458,506,534.37/18,668.34
  6. Step 6: Final answer
    x = 24,560.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.